10111210220111 has 64 divisors (see below), whose sum is σ = 14167896938496. Its totient is φ = 6955730496000.

The previous prime is 10111210220087. The next prime is 10111210220113. The reversal of 10111210220111 is 11102201211101.

It is not a de Polignac number, because 10111210220111 - 2⁶ = 10111210220047 is a prime.

It is a super-4 number, since 4×10111210220111⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111210220113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227928545 + ... + 227972901.

It is an arithmetic number, because the mean of its divisors is an integer number (221373389664).

Almost surely, 2^{10111210220111} is an apocalyptic number.

10111210220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10111210220111 is a deficient number, since it is larger than the sum of its proper divisors (4056686718385).

10111210220111 is a wasteful number, since it uses less digits than its factorization.

10111210220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54312.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10111210220111 its reverse (11102201211101), we get a palindrome (21213411431212).

The spelling of 10111210220111 in words is "ten trillion, one hundred eleven billion, two hundred ten million, two hundred twenty thousand, one hundred eleven".